Add back iostat -y or -w descriptions

The iostat -y and -w descriptions were left in cda0317e,
get them back.

Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: George Melikov <mail@gmelikov.ru>
Closes #7479
Closes #7483

diff --git a/man/man8/zpool.8 b/man/man8/zpool.8
index c0e8b24fe57826639edc1ed0f711a471d9187fd8..92a2c75fb4fd6a0bdd7886b79dcc647bea66a765 100644 (file)
--- a/man/man8/zpool.8
+++ b/man/man8/zpool.8
@@ -23,11 +23,11 @@
 .\" Copyright (c) 2012, 2017 by Delphix. All rights reserved.
 .\" Copyright (c) 2012 Cyril Plisko. All Rights Reserved.
 .\" Copyright (c) 2017 Datto Inc.
 .\" Copyright (c) 2012, 2017 by Delphix. All rights reserved.
 .\" Copyright (c) 2012 Cyril Plisko. All Rights Reserved.
 .\" Copyright (c) 2017 Datto Inc.

-.\" Copyright (c) 2017 George Melikov. All Rights Reserved.
+.\" Copyright (c) 2018 George Melikov. All Rights Reserved.

 .\" Copyright 2017 Nexenta Systems, Inc.
 .\" Copyright (c) 2017 Open-E, Inc. All Rights Reserved.
 .\"
 .\" Copyright 2017 Nexenta Systems, Inc.
 .\" Copyright (c) 2017 Open-E, Inc. All Rights Reserved.
 .\"

-.Dd March 9, 2018
+.Dd April 27, 2018

 .Dt ZPOOL 8 SMM
 .Os Linux
 .Sh NAME
 .Dt ZPOOL 8 SMM
 .Os Linux
 .Sh NAME


@@ -1581,7 +1581,24 @@ block device.
 Verbose statistics Reports usage statistics for individual vdevs within the
 pool, in addition to the pool-wide statistics.
 .It Fl y
 Verbose statistics Reports usage statistics for individual vdevs within the
 pool, in addition to the pool-wide statistics.
 .It Fl y

+Omit statistics since boot.
+Normally the first line of output reports the statistics since boot.
+This option suppresses that first line of output.

 .It Fl w
 .It Fl w

+Display latency histograms:
+.Pp
+.Ar total_wait :
+Total IO time (queuing + disk IO time).
+.Ar disk_wait :
+Disk IO time (time reading/writing the disk).
+.Ar syncq_wait :
+Amount of time IO spent in synchronous priority queues.  Does not include
+disk time.
+.Ar asyncq_wait :
+Amount of time IO spent in asynchronous priority queues.  Does not include
+disk time.
+.Ar scrub :
+Amount of time IO spent in scrub queue. Does not include disk time.

 .It Fl l
 Include average latency statistics:
 .Pp
 .It Fl l
 Include average latency statistics:
 .Pp